I am trying to mount a Blackspire Stinger tensionser to my SC Heckler w/ '07-'08 Stylo GXP cranks.

The problem is.....the Heckler is a 73mm BB shell, so there are no spacers on the BB. Once I install the Stinger under the driveside BB Shell, the non-driveside crank arm will not bottom out on the spindle.

Is there something I am missing here? Is there a different BB that I need to get to make this work?